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Installing the Control Unit
110 - 125
Volts
Neutral
Phase
(HOT)
Ground
Less than
2.5 Volts
110 - 125
Volts
Figure 2-2.
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Measuring the AC Outlet Voltages
Phase to ground should be 110 to 125 VAC.
Neutral to ground should be less than 1 VAC.
Phase to neutral should be 110 to 125 VAC.
WARNING:
If the voltage readings do not measure the values required,
the AC outlet is improperly wired: do not install the system.
Advise the customer to have a licensed electrician correct the
problem.
2-10
Power and Grounding